Cardamine
bittercress, toothwort
14 species
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Cardamine angulataangled bittercress, seaside bittercress
Distribution: Occurring west of the Cascades crest in Washington; Alaska to northern California.
Habitat: Wet ground, especially along stream banks, often in deep woods.
Origin: Native
Flowers: April-June
Cardamine bellidifoliaalpine bittercress
Distribution: Occurring In the Olympics and Cascades mountains in Washington; Alaska to California, east across Canada to far northeastern North America
Habitat: Subalpine to alpine meadows.
Origin: Native
Flowers: June-August
Cardamine breweriBrewer's bittercress, round bittercress
Distribution: Distributed on both sides of the Cascades in Washington; British Columbia to California, east to the Rocky Mountains from Montana south to Colorado.
Habitat: Stream margins, wet meadows, pond shores, and other riparian areas.
Origin: Native
Flowers: April-August
Cardamine cordifoliaheart-leaved bittercress, large mountain bittercress, Lyall's bittercress
Distribution: Occurring in the Cascades, but not the Olympic Mountains, in Washington; British Columbia south to California, east to Idaho.
Habitat: Mountain stream banks to subalpine meadows.
Origin: Native
Flowers: June-September
Cardamine corymbosaNew Zealand bittercress
Origin: Introduced
Cardamine flexuosawavy bittercress
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California, also in central and eastern North America.
Habitat: Disturbed ground, often where moist or shaded.
Origin: Introduced from Eurasia
Flowers: April-September
Cardamine hirsutahairy bittercress, shotweed
Distribution: Occurring on both sides of the Cascades crest in Washington, but more common west of the crest; British Columbia to California, east to Idaho and Montana, and throughout much of eastern North America.
Habitat: Disturbed ground at low elevations.
Origin: Introduced from Eurasia
Flowers: March-June
Cardamine nuttalliibeautiful bittercres, Nuttall's toothwort, slender toothwort
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California.
Habitat: Seasonally moist soils of forest openings to forest understory, from low to moderate elevations.
Origin: Native
Flowers: March-May
Cardamine occidentaliswestern bittercress
Distribution: Occurring west of the Cascades crest in Washington; Alaska to California.
Habitat: Muddy ground, lake margins, shallow streams, and wet meadows.
Origin: Native
Flowers: April-July
Cardamine occultawood bittercress
Origin: Introduced
Cardamine oligospermafew-seeded bittercress, little western bittercress
Distribution: Occurring on both sides of the Cascades crest in Washington, but more common west of the crest; Alaska to California, east to the Rocky Mountains.
Habitat: Widespread, but mostly in seasonally wet, open or forested areas.
Origin: Native
Flowers: March-July
Cardamine pensylvanicaPennsylvania bittercress, quaker bittercress
Distribution: Widespread on both sides of the Cascades crest in Washington; British Columbia to California, east through the Rockies to the Atlantic Coast.
Habitat: Moist to wet soils, or on the margins of wet areas.
Origin: Native
Flowers: April-July
Cardamine pratensiscuckooflower
Distribution: Currently known only from King County in Washington; southwestern British Columbia to Oregon; more commonly found in northeastern North America.
Habitat: Disturbed areas including lawns and forest edges of urban and suburban areas.
Origin: Introduced
Flowers: April-May
Cardamine umbellataSiberian bittercress, umbellate bittercress
Distribution: Occurring chiefly west of the Cascades crest in northern Washington; Alaska to northern Washington, east to Alberta.
Habitat: Subalpine or alpine cliffs, talus slopes, and wet areas.
Origin: Native
Flowers: June-August